HP 10642 Best practices for HP 10000 Series and HP 10000 G2 Series Racks - Page 19
conditioning. See
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Configuring racks without air flow perforations Older rack series, such as the Rack 7000 Series Racks and third-party racks with glass doors must have the door removed to support the latest high-performance equipment. Components should not be installed in a built-up enclosure unless the following conditions have been met: • The enclosure is specifically designed to accommodate the component. • There is proper ventilation for the component. • All manufacturer instructions have been followed. Rack placement and arrangement for proper air flow Racks must be placed and arranged properly in the data center to provide sufficient air flow and clearance for access to the rack. In the front of the rack, a clearance of 48 in. (1219 mm) is required; this applies to individual rack installations as well as when aligning rack rows so that the front doors are facing each other. In the rear of the rack, a clearance of 30 in. (762 mm) is required to provide space for servicing the rack. If a data center has multiple rows of racks, the rows of racks can be arranged to take advantage of the front-to-back airflow, by arranging racks front-to-front and back-to-back. Additionally, conditioned air registers may be oriented along the front aisles and the return air registers in the back aisles. Such an arrangement will utilize the aisle space as air plenums and will increase the efficiency of the air conditioning. See Figure 4. Figure 4. Airflow diagram 17